There is a problem with the PHP function in Drupal 7.

Good evening!

After working with views, I received the following message from Drupal:

Notice: Undefined variable: quantity in function omega_views_mini_pager() (line 218 in file  /profiles/agov/themes/contrib/omega/omega/includes/omega.theme.inc).

And in this line it was written as:  $pager_middle = ceil($quantity / 2);

Please help me understand this.